Home / 83,446.23-125,169.32-55,421

Finding the Fourth Proportional to 83,446.23, 125,169.32 and 55,421

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Solution

The fourth proportional to 83,446.23, 125,169.32 and 55,421 is: 83,131.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,446.23 : 125,169.32 = 55,421 : x
  2. Step 2: Convert to fraction form
    83,446.23/125,169.32 = 55,421/x
  3. Step 3: Cross multiply
    83,446.23x = 125,169.32 × 55,421
  4. Step 4: Simplify right side
    83,446.23x = 6,937,008,883.72
  5. Step 5: Solve for x
    x = 6,937,008,883.72/83,446.23
  6. Step 6: Final answer
    x = 83,131.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.